Does it cost hundreds of dollars to change the filter element every year after the water purifier is installed?

The water purifier needs to replace the filter element in time, which is correct. But the cost is not very big.

Take the water purifier of our company as an example. It is usually changed once every three to six months. Every time the filter element is replaced, the content is different. Generally, a family of three doesn't use much water, so it needs to be changed three or four times a year if the kitchen and drinking water are the main ones. Filter element fee plus door fee 150 to 200 yuan. If the user changes it himself (it is also very simple), the annual expenditure should be within 100 yuan.